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Environmental fate & pathways

Biodegradation in water: screening tests

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Description of key information

Readily biodegradable according to OECD criteria: >90% after 28 days (OECD 301 D)

Key value for chemical safety assessment

Biodegradation in water:
readily biodegradable

Additional information

Two reliable biodegradability studies are available for C12-14AS Na (CAS 85586-07-8). A key GLP study was peformed according to OECD guideline 301 D (Werner 1996). Acticvated, non adapted domestic sludge was used as inoculum. The biodegradation after 28 days reached >90% (based on O2 consumption).

The supporting study (Diefenbach 1995) was performed according to EU method C.4 -A. The inoculum consisted of activated, non adapted sludge. The biodegradation measured as DOC removal reached 98% after 28 days.

Finally, a study by Costanini (2005) is available. The non-GLP test was preformed according to ISO 14593:1999 guideline. Inoculum was composed of a mixurte of domestic and industrial sludge. The biodegradation reached 97% after 28 days (inorganic carbon measurement).

It can be concluded that C12-14AS Na (CAS 85586-07-8) is readily biodegradable according to OECD criteria.